Self-lubricating bearing



jan. 10, 1933. 1 M BRYAN ET AL l,894,082

SELF LUBRICATING BEARING Filed Feb. 9, 1951 3 Sheets-Sheet l M754 dumm,

Jn. 10, 1933. J. M. BRYAN ET AL 1,894,082

SELF LUBRICATING BEARING Filed Feb. 9. 1951 3 sheets-sheet 2 Jan. 16i933.

1A M. BRYAN ET AL LSSyS SELF LUBRICATING BEARING 3 Sheets-Sheet C5 FiledFeb. 9. 1931 gwventow @reiterated den. lll, il

SEUL" 'Ul RULTZKBYG G- rppllca'ticn lieti February @ur invention relatesto self-lubricating bearings and has for one ot its principal objectsthe provision of an eXtrem-ely simple and highly edective device eitherreadily built in to e which inay be :iisting journalboxes or may be inthe forni of an attachment,

of oil or other lubricant iroA tacle in the lower side ot th inventionis to enclosed pump e the circulation ni the oil recepe journal-box tolthe upper or bearing portion thereof.

A still further ob'ect of o ci: gearing which will coinpei ur inventionresides in the provision or a novel arrangement l the circulation of oilto the bearing in either direction ci? Will be apparent froin the ber.

sse and other objects or our invention description and claim 'whentalren in connection `with the ac coinpanying drawings forming a part orthis application, wherein Figure i is a :e

:ront elevation, brolren away, or a journal-bor; generally usedpartially in connection with railway cars or the like; Figure 2 is a'transverse sectional view on enlarged scale, taken on Figure 3 andlooking in the arrows;

the line 2 2 o' direction ci the Figure 3 is a longitudinal sectionalvier-v y 'a L b n p 71. 'taken along the line 8mo or rigure 2 andlooking in the direction indicated by 'the arrows;

used in conjunction with this box;

Figure 5 is a fragmentary another torni of the invent Figure i is a topplan vien,7 or the bearing type or ournalside elevation 03y ion,portions of the journal-bou shown in dotted lines, and

Figure 6 is a transverse sectional vieu7 thereolitalren on the line 6-6of Figure 5.

Uur invention, in the form or embodiment showny in the drawings andbriefly described,

45 comprises a main or outer c asing, l0, an oil pump, ll, supportedagainst rotative Inove- ,rnent Within the main casing 10, and drivingmeans indicated generally as at l2, for rotating the gears Within thegear casing, com- 5@ peiling the circulation ot th e lubricating oil 9,1931 Serial filo.

through the bearing, i3. ln the present enibodinients of our inventionWe have disclosed a self-lubricating journal bon 'for railway cars orthe like, but it may be here stated that our invention may be readilyemployed in connection with numerous other types of journalboires formovable shafts,

lWith particular reference to -Figures l, 2, 8 and l of the accompanyingdrawings wherein is illustrated a journalbor wherein the shaft isadapted to be rotated in one direction, the inain casing, l0, preferablysul rounds or houses the rotatably mounted shaft, ln this instance, thebearing, i3, is pro vided which is .adapted to rest upon the upper surface of the shaft, le, and is further provided with a Well or recess,i6, on its upper This Well or depression, 16, is formed by theupstanding side Walls or ribs, i7, for the purpose of receiving the oil,whereby the ro tatahle shaft may beerrlectually lubricated.

.el plurality of radially extending' openings,

i8, are provided in the upper portions oi the bearing, i3, which, ofcourse, connect the bearing surface of the member, l, with 'the well ordepression, 16. pair or oppcsitely disposed and horizontally extendingopenl ings, i9, are provided the side Walls or flanges, i8, for thereception of the ends or the tubes, 20, for a purpose to be hereinafterdescribed. A cover plate, 2l, is preferably snugly fitted upon the uppersurface of the bearing` nieinber, 13, and is adapted to rest upon theilanges, i7, thereby rendering the oil chamber, 16, dustprooii.

The oil pump, indicated generally at il, comprises gear casing, 22, anda casing cover, 23, which inay be securec thereto by means of bolts, 2e,or other suitable fastening means. Referring new particularly to Figures2 and 3, the gear casing, 22, is provided with a substantially circulardepression, 25, for the reception of the master gear, 26, which, inturn, is keyed to the tubular shaft, 27. rlhis tubular shaft, 27, isadapted to be snugly fitted upon the stub shaft, 28, which is, in turn,concentrically secured to the shaft, 14. F or the purpose of readilyattaching or disconnecting the tubular shaft, 27, with rei of theaccompanying 42 and 43, may be 28, we may provide the end thereofagainst the adjacent portion Y of the tubular shaft, 27. By this means,1t will be readily appreciated that we may easily disconnect the oil pumwith respect to the stub shaft, 28, by merely removing the gearl casingcover, 23, and then loosening the tapered screw, 30. A packing land, 31,may be mounted in the rear wall o the gear casing, 22, if desired.

he gear casing, 22, is further provided with depressions, 32, 33, and34, for the reception of the rotatably mounted gears, 35, 36 and 37. Thedepressions, 32 and 33, are suitably spaced apart to permit the rotationof the centrally disposed gear or inion, 37, independently of the gear,35. n this instance, it will be noted that the pinion, 37, merely actsas an idler through which the gear, 36, is driven. Then, too, in thismanner, we obtain reverse directions of rotation ofthe gears, 35 and 36.The gears, 35, 36 and 37, may be mounted upon their respective shafts,38, 39 and 40, which are, in turn, suitably supported by the rear wallof the gear casing, 22, and held in their proper position by means ofset screws, 41. f

A pair of pipes or tubes, 42 and 43, communicate with the recesses,means of the upwardly converging openings,

i 44 and 45, as is clearly indicated in Figure 2 drawings. These pipes,

spective openings in the gear casing as by soldering, brazing or thelike. A pair of threaded openings are provided in the lower ortions ofthe gear casing, 22, in close proximity of the gears, 35 and 36, for thereception of the short pipes or nipples, 46 and 47. The lower ends ofthese pipes or nipples, it willl be noted, extend downwardly into themain casing, 10, below the oil level and to within a relatively shortdistance of the bottom ofl themain outer casin In this manner, thejournal bearing will eiectually lubricated with a comparatively smallamount of oil in the oil well or chamber. to Figure 2,it at the will beno e ression, 34, in which the lower, portion o the" idler gear, 37,rotates, is arcuate and the sides thereof indicated at 48,

casing, 22. The purpose of this arcuate depression, or rather, the sidewalls, 48, is to prevent the oil which Hows upwardly through the pipes,46 and 47, from coming 1n contact with the idler gear, 37, and to assurethe oil to be conveyed in the direction of the arrows indicated by thegears, 35 and`36, from which it will be forced upwardly through theirrespective tubes from pipes, 42 and 43, and into shaft, 28, with a plu-32 and 33, by-

secured within thelr rev trheferring agan\ Y extend Ldown wardly andmerge into the bottom rof the gear the oil chamber, 16, through theoutlet ends of the tubes or pipes, 20.

Although the oil pum 11, is held concentrically with respect to t eshaft, 14, and further held against rotation by means of the pipes, 42,and 43, we have provided an additional means for reventing any rotativemovement of the oil ump with respect to the rotatable shaft. his meanscomprises a downwardly extending arm or lug, 49, which is preferablyformed integral with the lower ortion of the gear casing, 22, and a pairo o positely disposed and upwardly extending ugs, 50, which areintegrally cast with the outer casing, 10.

In the embodiment of our' invention il lustrated in Figures 5 and6wherein is disclosed an oil pump for forcibly lubricatin a bearinregardless of the direction in whi the sha rotates, a novel arrangementof gearing is shown.

Referring particularly to Fi be noted that the lower ends o the oil feedbranches, 56 and 57, communicate with the depressions or chambers, 58and 59, whereas the upper end of these pipes are provided with,ytransversely extending pipe sections, 61 fnd 62, which terminate in theoil chamber,

The rotation ofthe master r, 65, as indicated in Figure 6, of therawings, will cause the oil to circulate in the direction shown by thearrows, entering through the pipe or nipple, 66, then forced around thedepression, 67, and upwardly through the chamber, 59, into the ipe, 57.

Obviously, vwhen t e master gear, 65, rotates inthe vopposite directionor clockwise, the oil will flow upwardly throu h the oppo site short ipeor nipple, throng the depression, 58, t enceinto the pipe and itsrespecf tive transverse pipe section, 56, and 61, into the oil chamber63.

It will now be readily understood that the journal box or bearing may beutilized in connection with a movable shaft for constantly lubricatingit under pressure and regardless of the direction of movement of itsrespective shaft.

It may be here stated that the several units comprising our stalled, andlits efficiency maintained with the minimum amount of care andattention.

What we claim is:

. In a lubricating apparatus for a bearing, the combination comprising amain shaft and a stub shaft secured thereto, said stub shaft beingradially slotted and internally threaded and tapered, a sleeve securedupon said stub shaft, a pump mounted upon said sleeve and removablysecured thereto by a screw with a tapered head which enga s the threadedand tapered portions of said stub shaft and expands the slotted at itsextremity lll y invention may be' readily in- I ing of said screw.

Leo/wee potons thereolQ against said sleeve, said pump having a housingand a cover-plate therefor, said cover-plate abutting agains the end ofsaid stub shaft to prevent oosenn Witness whereof We have signed hhisspecification.

JosEP- M. BRYAN. BMNAY SMART@

